EETextReference11

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EE8: Power Grid
This exercise shows you how the power company needs to anticipate and react to changing demands for electrical energy.

1. File Upload - Maximum Points: 2
Grab the document called EE8_PowerGrid from my Teacher's folder. When you have finished Page 2, please TAKE A SCREENSHOT of your graph and upload it here!

2. Multiple Choice - Maximum Points: 5
During which hour of the day did they need the most power (on average)?

• Midnight
• 5 A.M.
• Noon
• 5 P.M.

3. Multiple Choice - Maximum Points: 1
How did power demands change over the course of the day?

• The demands got smaller in the early hours of the day, peaked around dinnertime, and then declined.
• The demands got smaller in the early hours of the day, peaked around "primetime", and then declined.
• The demands got smaller in the early hours of the day, peaked around lunchtime, and then declined.

4. Multiple Choice - Maximum Points: 1
Which explanation would make the pattern look the way it did.

• People use more energy when the sun is highest in the sky.
• People use more energy until it starts to cool off in the evening.
• People use more energy when they first arrive at work.

5. Essay - Maximum Points: 1
How much energy was used during that 24-hour period?

6. Essay - Maximum Points: 1
Tell me something else that you noticed about the pattern!